Inicio  /  Building & Management  /  Vol: 2 Núm: 2 Par: 0 (2018)  /  Artículo
ARTÍCULO
TITULO

Towards sustainable housing: ABS industrialized passive buildings = Hacia la vivienda sostenible: los edificios industrializados pasivos ABS

Pedro García SanMiguel    
Julian García Muñoz    

Resumen

Promoting innovation in the construction sector is one of the cornerstones of sustainability, since it is one of the main responsible for GHG emissions. This paper provides a proposal for sustainable housing: the industrialized passive home of American Building System Company (ABS) and its suitability to be incorporated into the construction system. Following the comparative analysis of the energy demands of this model versus an equivalent house which follows the regulations of the CTE. These data will be simulated by the SG SAVE software that perform the energy simulation of the both systems, based on the transmittance values of enclosures and glass and the final tightness of the homes. From these results about the savings in energy consumption, an economic analysis has been carried out and an assessment of the amortization period of the proposed house facing the other. In addition, through the calculation coefficients of equivalent CO2 emissions from the Spanish Ministry of Industry, the reduction of greenhouse gas emissions associated with energy consumption during the use stage has been obtained. Finally, for a standardize comfort conditions, the modelling and the assessment allow us to conclude that the deployment of ABS house in comparison with the conventional Spanish system supposes a reduction of 60% in energy demand, a 90% in CO2 emissions, and an amortization period of 12 years. With all these evidences we should start to think why this system has not been already integrated in the Spanish construction sector.Fomentar la innovación en el sector de la construcción es una de las piedras angulares de la sostenibilidad, pues la construcción es uno de los sectores responsables de las emisiones de GEI. Este artículo busca ofrecer una propuesta para la construcción sostenible: la vivienda pasiva industrializada de la empresa American Building System (ABS) y su idoneidad para ser incorporada como sistema constructivo tras el análisis comparativo de sus demandas energéticas frente a los de una vivienda equivalente que sigue la normativa del Código Técnico de la Edificación. Estos datos han sido obtenidos a partir del modelado energético de la vivienda a través del software SG SAVE, en función de los valores de transmitancia de cerramientos y vidrios y la estanqueidad final de la vivienda. A partir de estos resultados se ha realizado un análisis económico y se ha calculado el periodo de amortización de la vivienda propuesta frente a la del sistema convencional. Por otro lado, mediante los coeficientes de cálculo de emisiones del Ministerio de Industria Español, ha sido posible estimar la reducción emisiones de CO2 asociadas al consumo de energía durante la etapa de uso como consecuencia de la reducción de demanda energética entre ambas viviendas. Finalmente, para unas condiciones de confort normalizadas, la modelización energética y el análisis de resultados nos permiten concluir que la vivienda ABS en comparación con la vivienda del sistema convencional español nos permite reducir la demanda energética en hasta un 60%, las emisiones de CO2 en hasta un 90%, con un período de amortización de 12 años. Con todas estas evidencias de mejoría se plantea una reflexión final que es la de por qué este tipo de sistemas constructivos no están todavía integrados en el modelo constructivo español .

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